20021302032 has 80 divisors (see below), whose sum is σ = 52283522688. Its totient is φ = 6601512960.

The previous prime is 20021302031. The next prime is 20021302123. The reversal of 20021302032 is 23020312002.

It is not an unprimeable number, because it can be changed into a prime (20021302031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2930973 + ... + 2937795.

Almost surely, 2^20021302032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20021302032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26141761344).

20021302032 is an abundant number, since it is smaller than the sum of its proper divisors (32262220656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021302032 is a wasteful number, since it uses less digits than its factorization.

20021302032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7488 (or 7482 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20021302032 its reverse (23020312002), we get a palindrome (43041614034).

The spelling of 20021302032 in words is "twenty billion, twenty-one million, three hundred two thousand, thirty-two".